Granted Patent
Utility
US 4,863,715 · App. 06/800,138
Method of NMK imaging using a contrast agent comprising particles of a ferromagnetic material
Inventors:
Trond Jacobsen, Jo Klaveness
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Oct 31, 1985
Inventors
Trond Jacobsen
Jo Klaveness
Assignee (at issue)
Nycomed AS
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.